1-pyrroline
3,4-dihydro-2H-pyrrole
Identification
| Name | 1-pyrroline |
| IUPAC | 3,4-dihydro-2H-pyrrole |
| CAS Number | 5724-81-2 |
| EINECS | 227-230-6 |
| FDA UNII | 2SK2I7766O |
| Molecular Formula | C4 H7 N |
| Molecular Weight | 69.10679000 |
| Nikkaji Number | J26.032K |
| Beilstein | 103165 |
Regulatory
| JECFA Food Flavoring | 1603 1-pyrroline |
| DG SANTE Food Flavourings | 14.167 1-pyrroline |
| FEMA Number | 3898 |
| FDA | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm (SATF) | 5724-81-2 ; 1-PYRROLINE |
Physical Properties
| Appearance | colorless clear liquid (est) |
| Assay | 99.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Specific Gravity | 0.84900 to 0.85500 @ 25.00 °C. |
| Pounds per Gallon - (est). | 7.065 to 7.114 |
| Refractive Index | 1.44000 to 1.44600 @ 20.00 °C. |
| Boiling Point | 87.00 to 89.00 °C. @ 760.00 mm Hg |
| Acid Value | 1.00 max. KOH/g |
| Vapor Pressure | 24.350000 mmHg @ 25.00 °C. (est) |
| Flash Point | 56.00 °F. TCC ( 13.33 °C. ) |
| logP (o/w) | -0.117 (est) |
| Soluble in | alcohol |
Organoleptic Properties
| Odor Description | at 0.10 % in propylene glycol. |
Safety Information
| Oral/Parenteral Toxicity | Not determined |
| Dermal Toxicity | Not determined |
| Inhalation Toxicity | Not determined |
GHS Classification
['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']
Safety in Use
| Category | flavoring agents |
| Recommendation for 1-pyrroline usage levels up to | not for fragrance use. |
| Maximised Survey-derived Daily Intakes (MSDI-EU) | 0.012 (μg/capita/day) |
| Maximised Survey-derived Daily Intakes (MSDI-USA) | 0.40 (μg/capita/day) |
| Threshold of Concern | 540 (μg/person/day) |
| Structure Class | II |
| baked goods | - |
| beverages(nonalcoholic) | 0.00050 |
| beverages(alcoholic) | 0.00250 |
| breakfast cereal | - |
| cheese | - |
| chewing gum | - |
| condiments / relishes | - |
| confectionery froastings | - |
| egg products | - |
| fats / oils | - |
| fish products | 0.00250 |
| frozen dairy | - |
| fruit ices | - |
| gelatins / puddings | - |
| granulated sugar | - |
| gravies | 0.01000 |
| hard candy | - |
| imitation dairy | - |
| instant coffee / tea | - |
| jams / jellies | - |
| meat products | 0.00010 |
| milk products | - |
| nut products | 0.00030 |
| other grains | - |
| poultry | - |
| processed fruits | - |
| processed vegetables | - |
| reconstituted vegetables | - |
| seasonings / flavors | - |
| snack foods | 0.00500 |
| soft candy | - |
| soups | 0.01000 |
| sugar substitutes | - |
| sweet sauces | - |
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Potential Uses
Natural Occurrence
Synonyms
3,4-
dihydro-(2H)-pyrroline
3,4-
dihydro-2H-pyrrole
2H-
pyrrole, 3,4-dihydro-
d(1)-
pyrroline
delta(1)-
pyrroline
Info:
aliphatic and aromatic amines and amides